Which sword should I use?

I just pulled my first copy of the Skyward Blade. But right now I’ve been working on leveling up Wolf Fang for her. I also have Aquila Favonia and Favonius Sword built. My Benny has Aquila Equiped and my Xilonen has Favonius Sword. So wasn’t sure if I should swap things around or stick with Wolf Fang? (Right now I am using both Furina and Xilonen in the same party).